We have recently shown (]) that the one-dimensional ( ld) Hubbard model possesses an infinite number of conservation laws by identifying a 2d classical statistical model for which a one-parameterâ€¦ (More)

We establish a correspondence between the evolution of the distribution of eigenvalues of a N Ã—N matrix subject to a random Gaussian perturbing matrix, and a Fokker-Planck equation postulated byâ€¦ (More)

We study the sawtooth lattice of a coupled spin 1/2 Heisenberg system, a variant of the railroad-trestle lattice. The ground state of this system is twofold degenerate with periodic boundaryâ€¦ (More)